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Freshwater isopods (Asellidae) of North America
1972
Williams, W. D. (William David)
The Biodiversity Heritage Library - United Kingdom
Freshwater isopods (Asellidae) of North America
1972
Williams, W. D (William David)
National Agricultural Library - United States of America
The freshwater amphipod crustaceans (Gammaridae) of North America
1972
Holsinger, John R.
National Agricultural Library - United States of America
Crayfishes (Astacidae) of North and Middle America
1972
Hobbs, Horton H. (Horton Holcombe)
National Agricultural Library - United States of America
The genus Argulus (Crustacea: Branchiura) of the United States
1972
Cressey, Roger F.
National Agricultural Library - United States of America